摘要
提出利用导向式自适应算法处理两相流的流动噪声信号,以估计出的流动噪声传输参数计算两相流流速,对这种算法的收敛性和流速测量性能进行了论证。当流动噪声信号量化为1 bit时,则形成极性导向自适应算法,它便于用比较简单的硬件实现快速运算,适于制作成专用的流速检测集成芯片。理论分析和实验结果表明,这种方法测量结果的实时性和分辨率优于相关法。文中给出气水两相流垂直管段与极性相关法进行对比实验的结果。
In this paper, the pilot adaptive algorithm is used to process flow noise signals and the two - phase flow velocity is calculated from the estimated flow noise transfer parameters. Both convergence behaviour and flow velocity measurement capability of the algorithm are discussed. When the flow noise is quantized into 1 bit, the polarity pilot adaptive alogorithm is formed, which makes it possible for the simple hardware to realize high-speed operation, and also suitable to apply a special IC chip to the flow measurement. Theoretical analysis and experiment results show that the real - time property and resolution of the measurement created by this method is better than by the correlation one. The paper also provides the experiment results from a gas-water flow vertical pipe as compared with the polarity correction method.
出处
《工业仪表与自动化装置》
2006年第3期7-9,25,共4页
Industrial Instrumentation & Automation
关键词
两相流
测量
自适应算法
two-phase flow
measurement
adaptive algorithm
